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  <title>Create new buffered event</title>
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  <div id="layout-content"><div id="function.event-buffer-new" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">event_buffer_new</h1>
  <p class="verinfo">(PECL libevent &gt;= 0.0.1)</p><p class="refpurpose"><span class="refname">event_buffer_new</span> &mdash; <span class="dc-title">Create new buffered event</span></p>

 </div>
 
 <div class="refsect1 description" id="refsect1-function.event-buffer-new-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>event_buffer_new</strong></span>
    ( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$stream</code></span>
   , <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$readcb</code></span>
   , <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$writecb</code></span>
   , <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$errorcb</code></span>
   [, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$arg</code></span>
  ] ) : <span class="type">resource</span></div>

  <p class="para rdfs-comment">
   Libevent provides an abstraction layer on top of the regular event API.
   Using buffered event you don&#039;t need to deal with the I/O manually, instead
   it provides input and output buffers that get filled and drained
   automatically.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.event-buffer-new-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<code class="parameter">stream</code></dt>

     <dd>

      <p class="para">
       Valid PHP stream resource. Must be castable to file descriptor.
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">readcb</code></dt>

     <dd>

      <p class="para">
       Callback to invoke where there is data to read, or <span class="type"><a href="language.types.null.html" class="type NULL">NULL</a></span> if
       no callback is desired.
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">writecb</code></dt>

     <dd>

      <p class="para">
       Callback to invoke where the descriptor is ready for writing, 
       or <span class="type"><a href="language.types.null.html" class="type NULL">NULL</a></span> if no callback is desired.
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">errorcb</code></dt>

     <dd>

      <p class="para">
       Callback to invoke where there is an error on the descriptor, cannot be
       <span class="type"><a href="language.types.null.html" class="type NULL">NULL</a></span>.
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">arg</code></dt>

     <dd>

      <p class="para">
       An argument that will be passed to each of the callbacks (optional).
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.event-buffer-new-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   <span class="function"><strong>event_buffer_new()</strong></span> returns new buffered event resource
   on success or <strong><code>FALSE</code></strong> on error.
  </p>
 </div>


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